fix(demo): more tweaks to get files

demo/api/serverless/[lang].ts

@@ -3,7 +3,7 @@ import { Language } from 'epic-language'
 import { translate } from 'epic-language/function'
 import { promises as fs } from 'fs'
 import { it } from 'avait'
-import englishSheetImport from './en.json' assert { type: 'json' }
+import englishSheetImport from './en.json' with { type: 'json' }
 
 export default async function handler(request: VercelRequest, response: VercelResponse) {
   console.log(process.cwd(), new URL('./en.json', import.meta.url), englishSheetImport)

demo/api/tsconfig.json

@@ -4,5 +4,6 @@
     "moduleResolution": "NodeNext",
     "module": "NodeNext",
     "resolveJsonModule": true,
+    "esModuleInterop": true,
   },
 }

demo/api/vercel.json

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://openapi.vercel.sh/vercel.json",
+  "functions": {
+    "api/static/edge/[lang].ts": {
+      "includeFiles": "./api/static/edge/*.json"
+    }
+  }
+}